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View Full Version : How many amps does a factory intank fuel pump draw?


Roothawg
09-14-2003, 02:26 PM
I have been chasing wires on this motorhome fiasco and it might be easier/faster to run a switch on the dash for the pump. Would I have to have a relay? I don't want to burn this thing to the ground.......

tomslik
09-14-2003, 02:55 PM
gm pumps are 8 amps..
they're all pretty close to that unless they've got problems..

Unkl Ian
09-14-2003, 03:08 PM
Are all the GM intank pumps the same? Or do they have different sizes based on engine displacement?

Roothawg
09-14-2003, 03:15 PM
Would that be too much draw if I just runa hot wire off of the ignition switch? I am no electrician...

Fat Hack
09-14-2003, 04:09 PM
Use 14 gauge wire or larger and you should be okay with an 8 amp draw.

I tend to lean towards overkill, so I'd run 12 or 10 gauge wire off of a relay wired into the ignition switch, but that's just me!

fuel pump
09-14-2003, 07:35 PM
You better run a relay. Filters can get plugged up and cause a pump to draw a lot more than 8 amps. Better safe than sorry.